piezoelectric potential due to a deformation
hi, an electric potential applied to a piezoelectric material will cause a deformation of the material. On the other hand a deformation of a piezoelectric material will end up in an electric potential....
View Articlecharged particle tracing help needed
hello, i have a simple box with relative permittivity and electric conductivity = 1. with the mef module i created a magnetic field along the x axis with 10 A/m. i used a working plane inside the box...
View ArticleCan I use COMSOL to solve integral equations?
Dear all, I have some integral equation to solve. Can I do that with COMSOL or I always need to change it to PDE? Thanks a lot!
View Articlegive specific values for every mesh point of a boundary as boundary condition
hey everybody, is it possibly to give different values for all points of the mesh on the boundary, respectively? for example, just a vector containing as many values as i have boundary mesh points, or...
View ArticlePlease send me tutorial for ultrasonic wave propogation through liquid
I need tutorial on Ultrasonic wave propogation through liquid.
View ArticleAdaptive meshing
How do I implement adaptive meshing in a 2D mode in COMSOL 4.3a.? -- MKSharma
View ArticleAdaptive meshing
How do I implement adaptive meshing in a 2D mode in COMSOL 4.3a.? -- MKSharma
View ArticleHydraulic Conductivity in Reacting flow in porous media
Hello, Does anyone know if the hydraulic conductivity is still measured in the Reacting Flow in Porous Media node in COMSOL 4.3a? In a similar node in version 4.3, I could measure the hydraulic...
View ArticleWhat Physics I need for a liquid cooling problem with phase change
Dear everyone, I am totally new to COMSOL. Now I am working on simulation of a cooling system. It is a melted material thrown to another liquid (e.g. water). This may cause phase change of water from...
View ArticleEjection step in injection molding
Hi, I am trying to simulating the ejection step of injection molding process using Comsol. After filling plastic into mold cavity, and packing stage, the solidified plastic part is ejected out of mold....
View Articlestudy computation
hi, suppose if i use 3 different studies for three physics in my model do i need to compute each study one by one or 3rd one directly..
View ArticleFEM error
Hello every one. i am new to this COMSOL and with the help some tutorial i learned how to use. i am much familiour with Matlab. i want to ask 1 question, which i am facing in my most of the models. let...
View ArticleModifying the Fluid Flow Equation System
Hi everybody, Is it possible to change the fluid flow equation system in order to fit a logarithmic function in the derivative? I am currently using the earth science module to model a dual porosity...
View Articleheat source setting
HI;I have a question that when I using heat transfer in solid and lamina flow model to simulate heating a crucible in a silicon furnace, when I setting the heat souce desity equal:6000W/m^3, the...
View ArticleIndetity pairs should be fixed?
hello I am running a static structural mechanics problem on comsol multiphysics 3.5 . I have a building and i want to see the effect of a seismic load on my structure .. My problem is that the building...
View ArticleMEMS Microcantilever with electrostatic actuation
Hi I'm new to Comsol and would like to model a mems electrostatic switch. For this I am referring to this example:www.comsol.com/showroom/gallery/444/ I was trying to understand the 3d model provided...
View ArticleSTL Geometry & Meshing
I have been working on importing a geometry from an STL file; it's a thing 3-D object, where the length and width are on the order of 10^5 m and the thickness is 10^3 m. I originally had problems where...
View Articlewidth of PML
What will be the width of the PML( circular) to determine the confinement loss in hexagonal pcf. Regards Md. Samiul Habib
View ArticlePCF, PML
Hi, I am designing a PCF with hexagonal pattern having five air hole rings. pitch = 1 um. air filling fraction = 0.90 i have used circular PML to get the imaginary part of refractive index. what should...
View ArticleMetal film with subwavelength size hole: Transmmittance and reflectance study
Hi I'm novice in comsol RF simulation. I'm trying to simulate transmittace and reflectance throught metal film with subwavelength size hole. My structure will consists of Air/metal/semiconductor...
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